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Moisture: The Root of all Maintenance

Moisture maintenance

One of the primary issues in building science is the study of how moisture damages buildings and reduces the quality of life of its inhabitants. Moisture penetration can cause mold, rot, and interior damage. Serious moisture problems and their cure are often hard to solve as the physics of air flow, dew points, and vapor transmission can be complicated even with invasive inspections and the introduction of modern tools such as infrared scanning and moisture meters. As these more difficult problems will need a longer article to fully explore, let us focus instead on the more common problems faced by homeowner association and condo boards.

Leaking Foundations

Foundations are usually constructed with poured concrete or concrete block. Modern foundations are protected with a waterproof coating on the exterior surface and a foundation drain around the foundation perimeter at the base of the footing, often with an under-slab drainage system with an associated sump pump. With these operating properly, basements should be dry. If a modern foundation (less than 30 years old) experiences water infiltration, something is not working right and the source is probably surface water. If someone tells you it is due to rising ground water, be skeptical. Keep in mind the water table is the depth in the earth that is permanently saturated with water. According to the building code, modern foundation basement slabs are built above the water table. If the water table is too high, then the building will not have a basement but rather it will be built on a slab on grade. If you have any question about where the water table is, the municipal code officer or a local foundation excavating contractor can help.

Two-Step Approach

If your foundation is leaking, you need a two-step action plan. First, fix the wall problem allowing water to infiltrate into the basement and second, minimize surface water reaching the exterior of your foundation wall. As it will prove difficult and expensive to re-apply waterproofing to the exterior wall, the typical repair is a pressure injection of polyurethane or other type of foam product into cracks in the wall. The second step is just as important.

Surface water comes from a variety of sources. It can be rain or snow melting on the roof, rain falling on the soil near the foundation, or water from nearby sloping land. Roof gutters are supposed to divert water away from the building, but often they are the primary source of water to the ground around the foundation. Gutters are often poorly designed – either they are undersized in handling the flow of water off the roof area, do not have enough downspouts to handle the quantity of run-off water, or the gutter/downspout is broken or incorrectly placed.

If gutters are installed too low at the roof edge, steep roofs will create a velocity in the laminar flow of water to overshoot the gutter during heavy rain events. Downspouts often discharge their water near the foundation rather than diverting it away from the wall. I recommend adding a minimum six-feet extension to the end of the downspout. Furthermore, you should treat the drip edge area along the foundation wall as a ‘secondary’ roof. By this I mean, you should seal the drip edge from allowing water from the roof or other source to enter the soil near the foundation.

Keep in mind the soil has been cultivated and it absorbs water readily. Newer homes also have the problem of the soil along the foundation being backfill soil that is not compacted well, allowing easy water passage, in effect creating a short circuit from the roof to your basement. This soft soil also is susceptible to settlement, creating a place for water to pool or cause erosion allowing even more water to enter the soil.

To prevent this problem, you must first create a positive slope on the surface away from the foundation. A good rule of thumb is to create a slope dropping three inches over six feet. Once the proper slope is in place, cover it with 6 mil poly plastic approximately 18 inches wide along the foundation perimeter. This is your “secondary’ roof preventing water from entering the soil. Cover this waterproof barrier with stone or other suitable material to prevent the poly sheet from moving.

You may also have to slope the land nearby to prevent your neighbor’s land from contributing to your surface water. This can be done with shallow surface ditches called swales or buried ditches called French drains. This type of drain is a trench at the foot of a slope shedding water toward your home designed to intercept surface water from reaching your foundation wall. Buried in the trench is a perforated pipe to divert water. Your landscaper or property manager can provide details on available options. With a logical plan, you can have the dry basement you deserve.

Written by Jack Carr, P.E., R.S., LEED-AP, Senior Consultant Criterium Engineers
Published in Condo Media

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When the FUD hits the fan… run at the fan

Fear, Uncertainty, and Doubt

Condo association unit owners’ meetings can be a challenge. Boards often need to make hard decisions. People can become very emotional when it comes to issues affecting their money and they feel a lack of control. From what I hear the New England meetings I attend are mild compared to the ones seen on You Tube or those described by our Florida associates where the guards wear Kevlar vests.

When Alan Mooney, PE, RS, and I were invited years ago to be speakers at Community Association Institute’s (CAI) National Conference held in New Orleans, we decided rather than plow through a tedious power point speech; we would use the case method style format. Our presentation would show how tough issues should be managed in condominium meetings by using actual events to illustrate the points we wanted to cover. The following are some of the highlights of two of these case studies.

In “Get the FUD off the Table” we discussed the methods of dealing with the classic condo curmudgeon who tries to disrupt every meeting with negativism and other disruptive tactics to postpone or avoid any decision that may create change or spend money. I refer to this as throwing FUD on the table. FUD as in Fear, Uncertainty, and Doubt.

Of course, the best method of controlling this type of behavior is to not lose control of the meeting. This requires discipline and training. They do not teach effective condo board management in school. It is often a learn-on-the-job type of education. I have always admired CAI’s role in training both board members and property managers in the art of meetings. Condos are not businesses, but they should be run in a business-like manner.

In This Together

The first step in meeting control is to maintain a system of consistent rules and policies. Having a prepared agenda is key to setting the tone of a meeting. It establishes a chart to navigate through the presentation of issues, orderly discussions, and framework for the decision process. Educating meeting attendees on how motions are made and seconded, time limits on discussions, and voting rules goes a long way in creating an environment for a successful meeting. A written policy statement handed out to all attendees is helpful as people have a tough time arguing with a piece of paper rather than a real person.

A wise board will be open to innovative ideas from all sources but will have the means to control the condo commando who wants to take over the session. Boards often set up Homeowner Forums of ½ to 1 hour at the front or end of a meeting with strict time limits for each speaker. A well-prepared board will have the facts and answers that will sweep the FUD off the table.

The second case study was called “Don’t Hang Out Your Dirty Laundry”. Associations often must face difficult problems and make hard decisions. Perhaps it has just been determined that all the exterior siding or roofs must be resurfaced. Or the plumber just advised the board that all the heat system piping in a 12-story high-rise must be replaced. When the initial sticker shock hits and the specter of a hefty special assessment soon is realized, unit owners begin to panic.

It is at this time firm leadership needs to step up and remind everyone they are all in it together and whether they know their neighbor or not they are all in a sense a family and as a family they must keep their family business within the family. This means one does not tell the hairdresser about the roof leaking, or the butcher about the siding falling off, or even the brother-in-law about the pipe failure. This is critical because when the hairdresser passes the rumor on no one in the association would recognize the story by the third iteration.

Today’s real estate world is much more in tune with condos in distress from either recent foreclosures or underfunded reserve funds. Disclosures should be made in an orderly way with a timely reserve funding plan in place.

These problems are not solved by hanging out the laundry but rather recognizing the problem and establishing a plan to fix it. A plan of action must be in place to allow the community of unit owners to feel confident their equity will be protected and by joining together their goals will be met.

Though these two cases have different stories they have a consistent theme. When the FUD hits the fan…run at the fan. A successful association will have a board prepared to deal with a difficult future and the rules to guide and the sense to follow.

Written by Jack Carr, P.E., R.S., LEED-AP, Senior Consultant Criterium Engineers
Published in Condo Media

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How Drowning Detection Systems Can Save Lives

Conventional pool safety measures, including covers, perimeter fences, and subsurface alarms, can prevent unauthorized access when a pool is closed. However, these measures do not protect against drowning when a pool is in use. Lifeguards, swimming lessons, and parental supervision have traditionally served as the primary safety measures during swim time, but tragically, even these are not always sufficient.

According to the National Drowning Prevention Alliance (NDPA), 88% of child drownings occur with at least one adult present. This statistic highlights a significant gap in protection when a pool is open, especially in crowded pool environments. Even the most experienced lifeguards can experience fatigue and have a limited field of view. This is where Drowning Detection Systems come in. These systems monitor pools via underwater cameras and are available in both passive and active versions.

Passive systems feed continuous images to lifeguards on duty, allowing for easier and quicker identification of potential incidents below the surface. Active systems use Computer Vision to feed images into an AI model. These systems can recognize potential drowning victims, such as when a pool user has been submerged for an extended period, and automatically alert lifeguards if intervention is necessary.

The American Society for Testing and Materials (ASTM) has created the first-ever standard for active systems: ASTM F3698-24 – Standard Specification for Computer-vision Drowning Detection Systems for Residential Swimming Pools. This standard sets minimum performance thresholds and requires indicators for low-visibility situations, ensuring systems alert lifeguards within 30 seconds of detecting drowning behavior.

“This is an interesting use of Artificial Intelligence for added safety,” said Criterium Senior Engineer, Ralph Manglass, P.E. “While very useful, drowning detection systems are not a substitute for access control measures such as fencing, gates, etc., and for trained monitoring personnel such as lifeguards.” Widespread adoption has yet to develop, mostly due to cost and awareness, but with F3698 established, the hope is that more manufacturers will create these systems, leading to more installations, fewer drownings, and more lives saved.

Annual site inspections are a part of a regular maintenance plan for any Homeowners Association Community and can ensure the safety and structural integrity of your pool and its protective devices. To learn more about the services Criterium Engineers can provide your community, click the button below.

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Top 10 Condo Do Overs to Avoid

Over the last twenty years I have had the privilege of meeting with many condominium and HOA boards and leaders. Some were seasoned and experienced while others were new and exposed to the culture of community living for the first time. All wanted to do their best, yet failings and mistakes were acknowledged. With the hope of being forewarned is being forearmed, I thought I would share with you some of my observations of the ten most common condo board mistakes to avoid future do overs.

Not Understanding the Governing Documents: It is so basic. New board members are asked to read all the governing documents, but long-time members should also periodically review the association’s rules and regulations, especially when an important matter is to be considered. And of course, the corollary to this recommendation is these governing documents must be consistently followed and fairly administered. Erratic enforcement of the rules will never foster harmony in the community.

No Confidence in Your Management Company: This problem can be avoided from the start by hiring the right firm for your community. Interview the best candidates; ensure their proposed scope of services meets the specific needs of your community; and periodically review the selected firm’s performance and share your concerns. Once the board sets the goals and policies it should step aside and let the management firm enforce them without micromanaging the daily operations.

Not Maintaining Accurate and Timely Financial Statements: Loss of control over your financial statements is a guaranteed path to chaos in the community’s future. Good financial statements promote confidence amongst the unit owners; good relationships with your bankers and insurance representatives; and accurate information for reserve and operational planning and budgets. Up to date financial information is the engine driving revenue collections; trouble-free payables; and payroll processing.

Unreliable Reserve Fund Studies: If your reserve fund study is over seven years old, it is almost useless. Having the study sitting in someone’s bottom drawer and not referring to in that time is almost worse. Reserve studies are living documents whose basis is always changing. Construction and repair costs have skyrocketed. Inflation over the last two years has made most budgetary schedules obsolete and underfunded. A board does not want to be in the position of releasing the start of a major project only to discover more money needs to be raised.

Contribution Shortfalls to the Reserve Fund: The source of this problem is a failure within the management team. Either your accountant has not billed the proper assessments; your engineer has not estimated the necessary capital repair budget; or your property management firm has allowed deferred maintenance to get out of hand. Underfunded reserve budgets can damage the community’s image; impact unit owners’ future sale plans; and require future special assessments. The board is ultimately responsible for maintaining adequate operational and reserve fund balances. Not facing the need to raise assessments or delaying the decisions for necessary capital expenditures are classic board mistakes.

Communication Failures: Condo communities not only must be transparent in their communications with the unit owners but must be perceived to be transparent. Confidence in the board is built over time and will be called upon when difficult decisions need to be made. When everyone has the same set of facts, common decisions are much more likely. Today the media to get the word out is vast including bulletin board postings; community websites; email bursts; postal flyers; texting; etc. A well-run community has its members fully engaged as much as possible. Good and bad news should be dealt with on a timely basis. The community motto should be: “When it hits the fan, run at the fan.”

Uninformed Team Members: We Yankees like to fix things ourselves. However, in community living this can get a board in trouble. When a problem arises, there may be a tendency to save some money by not calling the condo’s lawyer, engineer, or insurance agent. The other Yankee saying is ‘penny wise and pound foolish’. If a liability issue arises or a conflict over the interpretation of a bylaw phrase, a quick phone call to your condo attorney might avoid unpleasant future consequences. The same is true for building safety issues or the discovery of water infiltration in the condo complex. Building problems rarely improve on their own.

Board Disunity: Disagreement among board members is bound to happen. Everyone’ opinion matters but everyone can’t be right all the time. The board members must follow established decision-making protocols and once a decision has been made each board member must stand behind the consensus. Anger and lack of respect have no place in community governance.

Not Following the Chain of Command: In general board members and committee chairs want to do the right thing. Sometimes in their enthusiasm to get things done in a timely manner they may take matters into their own hands and act without authority. Condo leaders must be reminded from time to time that they are dealing with community money, and they should not direct on-site contractors and vendors to supply services or make repairs without specific direction from the board. This type of lack of discipline can create unnecessary liability or costs easily avoided.

Improper Vendor Selection: Perceived vender service dissatisfaction is often the reason for a new member joining the board. All should be reminded before terminating a vendor service an exit interview should be held to determine all the facts. With a bit of due diligence, the true problem can be revealed resulting in better service with less trouble.

Community living require forbearance and respect for volunteer efforts. All things are possible with village unity.

Written by Jack Carr, P.E., R.S., LEED-AP, Senior Consultant Criterium Engineers

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Be Prepared – Emergency Response Best Practices

Emergency Response Plan

You don’t have to be a weatherman to notice storms are more frequent and fierce. Nor do you have to be a news broadcaster to recall all of the reported residential damage from fire, floods, and wind. Nor do you have to be an accountant to recognize the cost of building repairs are skyrocketing up. What you do have to do is …be prepared.

Being prepared means your community has an Emergency Response Plan (ERP) in place. Disaster planning is all about saving lives; reducing suffering; and minimizing damage. These ERP plans are a group of strategies to protect both community members and their property. Key elements of the plan are Mitigation; Preparedness; Response; and Recovery:

  • Mitigation includes identifying threats and eliminating potential danger with preventative maintenance to reduce vulnerabilities.
  • Preparedness requires well documented and trained evacuation routes; established muster points; and a system to account for everyone with an emergency contact system.
  • Successful Response in an emergency is greatly improved with a quick and decisive response requiring knowing the location of the key shut-off valves and safety features both within and outside of the units. It also includes updated lists of qualified repair contractors.
  • The Recovery element of post-disaster management is often overlooked yet vital to the overall success of the community’s future. Recovery is not simply the clean-up after the disaster but a pro-active real estate marketing plan.  Whether the disaster issue is a simple sprinkler pipe leak causing flooding and mold in an empty unit or a fire destroying a wing of a complex; the planning is critical knowing what should be done after the final repair contractor’s truck is off the site.

ERP Planning Steps

So how do you start? The board should create and appoint a disaster team made up at a minimum a member of the property management staff and a board member. Residents with skills in insurance; legal matters; electrical systems; HVAC; plumbing; emergency response should be sought to join the team. There are many sources for general outline for an ERP. Your insurance company may have pre-prepared templates of these types of plans for easy customization for your community’s needs. This is very important as we all know every condo community is unique in its own way. High-rise communities will require a more detailed evacuation plan than a community with duplexes or townhouses. Urban condominiums will have different needs than rural or suburban communities. Amenities, special equipment, and landscaping may be important issues in the ERP. Demographics must always be considered as a community of young professionals may not present the same safety challenges as an association with a more senior population.

The written plan needs to be approved by the board. The plan should be easy to access in multiple locations. It should be periodically reviewed and rehearsed. A good plan will have a checklist of steps to be taken; procedures to follow; and basic supplies to have on hand. Your insurance carrier or property manager may also be able to provide disaster training guidance and other resources. Just ask. You may also want to consider seeking training grants or funding through CERT (Community Emergency Response Training).

The basic Emergency Response Plan outline should consider the following:

1. Assessment of disaster risks – both experience and potential
2. Planning – budget and financing
3. Property management coordination
4. Safeguarding important condo documents
5. Ledger of assets – written and digital
6. Communication plan – elderly and special needs; absentees; etc
7. Emergency equipment available – condo and resident owned
8. Lines of authority
9. Evacuation plan
10. Insurance audit
11. Vendor and contractor call list
12. Recovery plan

Future storms will not reduce in intensity. Weather related power outages will increase. Unit owners are becoming more reliant on reliable power for medical safety, home business needs, and family education. If emergency power sources are not currently available, the association should consider how emergency generators might be introduced into the community. Providing suggestions for unit owners’ personal protection during severe weather events can be in the ERP including recommendations for maintaining an inventory of flashlights; batteries; charged phones; a supply of food; and medical supplies/ prescription drug availability.

Post-Disaster Market Value Perception

The common denominator need of all condo unit owners is protection of their net worth. Therefore, it must be repeated, after any disaster, the impact on market value and sale potential must be considered. It should never be assumed just because everything has been brought back to ‘as good as it was’ before the disaster, that the real estate market perceives this to be the case. The association may need to take very positive steps to approach the local real estate professionals to clearly demonstrate the physical state of the current condo complex. This could include certified inspection reports or lab test results or whatever it takes to make market perception the reality.

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Sound Off: Noise in Communities

Noise

Good friends of mine just retired and decided to move into an upscale condominium community. I asked if it was difficult to adjust to downsizing after leaving the “big” house, and interestingly enough, I was told the size of the living space was not the problem, it was difficult to adjust to the surrounding sounds. They would wake up to the adjacent unit’s alarm clock and kept up at night to the neighbor’s stereo speakers. During the day, they could even hear upstairs neighbors’ dog’s nails on the hardwood floors above.

Community living in Maine has many benefits. It also involves certain compromises. One of the more challenging aspects for owners to come to grips with is noise pollution. Residents, often moving from single family homes, are not used to hearing their neighbors. Sound transmitted between units, or sound from outdoors, can be extremely annoying and disruptive. And while many features of the unit can be appreciated during a walk through, the amount of sound transmission is not always apparent.

Identify Noise Problems

If there is a perceived noise problem in your community, one of the first questions to ask is where is that noise coming from? Is the noise coming from the outside? Examples would be transportation related noise such as highways, airplanes or rail noise. It might also be transitory, like construction noise. And it might be seasonal, like outdoor activity, especially when windows are open.

Internal noises may be transferred between units or from common areas into each unit. Transmission between units may be via walls, ceilings, or floors. It may also occur as a result of mechanical chases or through the actual piping or ductwork itself.

When addressing noise issues, it is important to determine whether the problem is localized or omnipresent. Certain orientations may be more susceptible to noise issues than others. Certain parts of a building–those near fans or mechanical equipment, recreational areas, etc.–may be more prone than others to experience problems. We have even found a variation between units due to construction inconsistencies. Field modifications in another area of the same building created a problem.

Any building may experience sound transmission issues, but the biggest determining factors are the physical location, type and quality of construction, and the age of the building. If a development is built near a highway or a flight path, the resulting potential problems may be obvious and hopefully were addressed during the design stages. Older buildings, especially ones that were conversions from factories or warehouses, can present particularly difficult problems. Structural components may abet sound transfer allowing it to pass unobstructed from unit to unit.

While some wall and ceiling assemblies are more effective than others, all must be assembled correctly with plenty of attention to detail. Care must be exercised to avoid “flanking paths” that allow sound to get around sound deadening assemblies.

Measure Noise Level

In a world where perception is reality, the first task is to define the problem. Is the noise that is causing complaints louder or more frequent than the occupants might reasonably expect? It is important to recognize that much of this is subjective. Different people will have different tolerances. The type of noise is also a concern – music, conversation, toilets flushing – each carry with it a relative level of acceptability.

There are, however, some relatively objective standards that have been developed by engineers and scientists to both quantify sound transmission and define acceptable levels.

The Sound Transmission Class (STC) is a value derived from creating and measuring the sound attenuation at various frequencies and comparing that to a standard reference. Whereas the STC measures sound transmission between areas separated by a common surface (walls, windows, etc.), the Apparent Sound Transmission Class (ASTC) is a more comprehensive measure in that it incorporates other pathways of sound transmission such as beams, columns, and chases for mechanical and electrical equipment, and is generally the basis for field testing.

The STC and the IIC (Impact Insulation Class) have been incorporated into local codes. Typically, the code specifies values of 50 (or 45 if field tested). However, codes are typically minimum levels and may not be high enough to produce comfortable noise control in many attached residential units

Address Noise Concerns

Sound energy, like thermal energy, is best disrupted by creating breaks between spaces. Mass also plays a role in overall comfort.  Generally, to improve Transmission Loss (the ratio of the sound energy striking the wall to the transmitted sound energy, as expressed in decibels), designers should seek to increase the weight of the surface layers and/or increase the distance between the surfaces.

Fiberglass insulation is often used, even in interior walls, to reduce sound transmission. Caulks and sealants are often used as well. Building walls in which the studs are offset and penetrations like electrical boxes and medicine cabinets are sealed can go a long way to improve the conditions. Drywall can be attached with resilient channels.

Dampening the source should also be considered. Many associations are beginning to establish minimum coverage of hard floors with carpeting, restrictions on hard soled shoes, and setting limits for sound levels from audio equipment. Other, more sophisticated strategies like baffling can be employed.

Reducing sound transmission in an existing building, whether old or new, is much more difficult than including good sound transmission practice as part of new construction. Reduction of sound transmission in wood framed buildings is generally more difficult than masonry or steel structures.

If problems arise, the first steps are to determine the existence of a real problem, attempt to quantify it, inspect to ensure that components were actually built as planned, and, then, hire a qualified consultant to recommend improvements. Most irritating noise issues can be resolved with some sound evaluation and thinking.

 

Article written by Jack Carr, P.E., R.S., LEED-AP, Criterium Engineers

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How Safe Is Your Deck?

May is National Deck Safety Month® and your spring maintenance checklist should include a thorough inspection of your deck and railings. It’s important to check their safety before the outdoor entertainment season begins with family gatherings and neighborhood barbecues taking place on your deck.

Deck Safety

Here are a few items to consider as you check your deck:

  • Check Connections: make sure all railing connections are secure. Anchorage points for wood railings often rot and may fail. Perform a stress test by cautiously pushing on the railing to make sure it doesn’t give at any point.
  • Stair Railings: stairs with two or more stair risers should have a railing.
  • Guardrails (railings): are required on “open-sided walking surfaces” higher than 30 inches from the ground, including decks. On single family homes, guardrails must be 36 inches high for decks (measured from the deck surface to the top of the rail) and 34 inches for stairs, measured vertically from the tread nosing.
  • Strength & Spacing: both guardrails and handrails must be able to withstand at least 200 pounds of force applied at any point and in any direction. The balusters should withstand 50 pounds of pressure exerted over a one-square-foot area. Spaces between balusters cannot exceed 4 inches to prevent children from getting their heads stuck in the openings or falling through them.
  • Benches: a bench installed around the perimeter does not serve also as a guardrail. The bench may be the required distance from the ground (36 inches), but without a guardrail behind it, which both the building code and common sense require, there is nothing to prevent someone from toppling backwards off the deck.
  • Touchup with Paint: repaint or stain the wood, if necessary (the experts suggest at least every five years). Consider using paint with slip-resistant additives for the deck and stairway riser surfaces.

With regular inspections of handrails and guardrails, you can identify and correct problems before they become an accident you could have prevented. Making sure that your deck, handrails and guardrails are safe will help to ensure the safety of all who use them from toddlers to seniors.

Related Deck Safety Resources:

  • Your Home – a Criterium Engineers article “Stairways and Decks Aren’t Safe Unless their Railings are Secure.” This document outlines building code requirements for guardrails and handrails, as well as design elements that may cause problems such as rail height and benches along the perimeter.
  • The North American Deck and Railing Association (NADRA) provides tools for consumers to Check Your Deck® for the upcoming season.
    • NADRA’s Check Your Deck® consumer checklistNote: these deck safety resources are provided for consumer guidance only. Contact us to have a licensed, Professional Engineer perform a structural inspection of your deck.
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Masonry Myths

masonry myths 1

Addressing the Reality

Since brick masonry exterior facades are supposed to have useful lives of 100 years or more, a prevalent myth is masonry facades are virtually maintenance free, needing little discussion by the condo board, and a rare cost item in reserve fund studies. In reality, masonry maintenance is discussed often with a great deal of misinformation and misunderstanding of the key issues.

Inspection and Maintenance

A condominium’s brick facade is one of its most important common elements. As such, its condition should be well-known. This can only be accomplished if it is inspected on an annual basis with full documentation including written comments, photographs, and sketches as needed. This facade report can be done by the building committee with proper training and consistent reporting protocols in place. The report should comment on the presence of structural and maintenance issues but does not have to suggest methods of repair.

Maintenance issues could include the presence of plant or vine materials on exterior walls; blocked weep holes; surface efflorescence; damaged brick; and mortar decay. Structural issues could include the presence of mortar/brick cracks >0.075 inches (2mm) in width in multiple brick units; stepped or diagonal cracking; heavy rust on window/door opening lintels; out of plane wall movement; and negative slopes on masonry sills. The scope of the exterior wall inspection should include the viewing of interior walls where water infiltration or wall staining has been reported.

Structure Matters

Equally important in a facade investigation is understanding what structure makes up the facade, as it is a myth all brick buildings are the same. Most of the old brick buildings in major cities use the exterior brick to support the interior floor framing and are thus called “bearing wall masonry.” These heavy walls were designed to prevent moisture from entering into the building’s interior spaces by the brick absorbing water in its multi-layers (wythes) of brick and drying out when the weather improved.

Over a hundred years ago, steel framing was introduced, allowing the building designer to hang the exterior facade skin using steel anchors on the perimeter of the building’s steel frame to produce more lightweight and cost-effective buildings. Today’s brick buildings use brick as a veneer in which the brick is only the first line of defense against water infiltration. The brick actually provides mechanical protection to the true water barrier, namely, sheathing behind a cavity space. This cavity acts as a drainage plane with weep holes at the bottom of the brickwork. It is also a myth to assume all brick veneer facades are the same. Brick veneers systems built before the mid-1980s did not have the robust framing members designed into today’s buildings, thus older exterior walls are subject to more flexibility from wind and other forces causing more cracking in both mortar and brick units.

Water Considerations

Many absorptive facade materials (concrete, sandstone, mortar, fired-clay masonry) can be seriously damaged by cyclical freezing and thawing of water entering the material through natural porosity or surface hairline cracks. These pockets of moisture can be trapped in facade walls whose freezing can expand, causing further cracking, spalling, or displacing adjacent masonry by a phenomenon called ice lensing. It should always be kept in mind, though, bricks can last 100 years, the sealants and caulks used around window/door openings and expansion joints only have useful lives of less than ten years and thus require replacement every ten years or so.

Another myth is all brick buildings need to have water repellant sealant applied periodically. Older buildings having load-bearing exterior walls with the original lime-based self-healing mortars typically do not need to be sealed. If a modern building with an anchored brick veneer system is deemed to need water repellant sealant, only siloxane-based products should be used to maintain breathability in the masonry wall. Never use sealants with acrylics or silicone that trap moisture in the masonry.

Therefore, the lesson to be learned about brick facade maintenance is even though masonry appears to be maintenance free, in reality, maintenance decisions should be based on knowledge and technical understanding. In older buildings, boards should seek advice from those with historic masonry experience who have worked with ‘limey’ mortars while veneer brick contractor applicants should know the advantages of re-pointing versus face grouting. With some research and planning, boards can make myth-busting maintenance decisions.

 

Article written by Jack Carr, P.E., R.S., LEED-AP, Criterium Engineers
Published in Condo Media
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Building Maintenance Check List

building maintenance check list

A Proactive Approach is Best

If you are responsible for your condo or HOA’s physical condition, this is no time to relax. Planning now can pay big dividends in being able to hire a repair contractor before the spring/summer crunch arrives. With that in mind, the following list can provide a guide to issues for you to consider.

Building Maintenance Check list

  • Inspect the roofs.
    Too often, missing shingles and other storm related damage to roofs goes unnoticed during the winter. Now is the time for each roof surface to be scanned by eye, or better yet, by binoculars. Avoid going up on the roof unless it has a very low slope. Leave that to the pros. Other damage comes from removing ice dams and snow.  Snow removal can be the cause of more damage than the actual snowfall itself. Most buildings are designed to handle snow, and it is very rare that even a large storm will dump enough snow to cause damage that will seriously harm your homes’ roofs. Let the snow melt naturally with the rain and warmer temperatures.
  • Gutter, downspout, and roof drain repairs.
    Frozen gutters and downspouts can cause ice dams, but the most likely cause is building heat escaping due to poor insulation and/or inadequate venting of the air below the roof. Nonetheless, ensuring gutters run free to remove snow melt and spring rains is very important. Those condos with low-slope roofs and internal roof drains need to ensure those drains are clear of winter debris block water and causing surface ponding.
  • Ground surface drainage pathways.
    Clearing out your drains on a regular basis will ensure they are free of debris for the summer thunderstorms. April and May are notorious for high quantities of rain no matter where you live. For communities located in snowy areas of New England, the additional water from the snow runoff can equal a great stress on the community’s drainage system. Avoid the potential of blocked drainage systems by habitually cleaning them every other month. Subsurface drainage culverts need periodic cleaning to ensure the winter sanding operation and other debris runoff has not prevented the proper storm drainage.
  • If you have a basement, check your sump pump regularly to ensure its operation throughout the rainy season.
    The snow run off (or rain in warmer climates) can create an overload of moisture your sump pump may not be able to handle. Perform monthly inspections of the pump by opening the sump pit’s cover to clear any debris out of the bottom of the pit.
  • Replace snow stakes.
    It’s a common mistake to replace the snow stakes only once a year, usually at the beginning of winter. The stakes can be the first thing to be damaged after a heavy snowfall, particularly if the snowplow knocks it over!
  • Landscaping plans.  Landscaping can often take a hit during the cooler months. Recover quickly by bringing in your local specialist and discussing the various shrubs and flowers needing planting in spring.
  • Send out paint bids for summer work. The major advantage to getting your bid requests out early is the extra time and accessibility your vendors are likely to have. Outside work requests often drop during cold weather and getting a head start will ensure your association is at the top of their list during the summer rush!
  • Security enhancements. Now is the ideal time for associations to make the security enhancements they’ve been thinking about all winter. Security fencing and an alarm system are two timely projects for the post-winter months.
  • Equipment rechecks. Even if pre-winter checks have been done, halfway through the winter is a good idea to do it again. Test emergency generators, keep batteries fully charged, check outside light fixtures are operational, ensure outside utility meters and hydrants are accessible, confirm clearance for both outside vents and exhausts, and change quarterly air filters.

Of course, this list focuses mainly on operating issues. When was the last time you took a hard look at your Reserve Fund Plan for capital repairs? Is your condo on schedule? Have things changed? Does the Reserve Study need a major update? Perhaps it is time a for a building condition survey to be conducted. This top to bottom review can be performed in-house or by a professional building inspector engaged to provide an informed, unbiased assessment of the physical condition of the various common building and site elements including siding, roof surface, structural framing, foundation, water infiltration, electrical, plumbing, HVAC systems, flooring, light fixtures, paving, and more. Providing a questionnaire to the unit owners during this process not only engages them in this important work but also may reveal common defects not readily known

Many maintenance projects have a double bonus—they will improve the appearance of your association while preventing costly repairs or replacements down the road. By undertaking some maintenance tasks now, you can lessen the costs many associations rack up in the rush to recover from winter.

Building Maintenance Check List – Article written by Jack Carr, P.E., R.S., LEED-AP, Criterium Engineers
Published in Condo Media
Download a PDF Version of this Condo Media article

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Innovations Transform the Building Inspection Process

technology and innovations 2

Emerging technology and innovation are continually transforming the building construction inspection process. Criterium Engineers evaluates and adopts appropriate new technologies to provide additional knowledge and information for our clients.

Two inspection innovations in particular—the use of drones and thermal imaging—have been change drivers for Criterium Engineers in recent years, reaching areas that were previously unattainable by our engineering team.

Drones

Remote-controlled drones, also known as unmanned aerial vehicles, were first used by the world’s militaries to perform complex missions deemed too dangerous for humans. To achieve similar safety goals and reduce risk, drone use has been adopted by many industries, including Criterium Engineers 35 consulting engineering firms located across North America.

Using FAA registered drones operated by our licensed pilots, building inspections are now completed more efficiently, saving time and cost to our clients. They also help reduce health and safety risks to our engineers and technicians who no longer need to use ladders, scaffolding, and lifts.

At the same time, drones allow us to access and inspect areas that were previously impossible or difficult to reach building components, for example:

  • Entire façade of a high-rise building
  • Fragile terracotta or slate tile roofs in a multifamily housing development
  • Entire surface area of an industrial chimney stack
  • Views to exterior, difficult-to-access HVAC equipment and envelope penetrations
  • Building dormers, gables, skylights, cupolas, and other unique architectural features
  • Risk-prone areas that are common sources for water intrusion, like exterior transitions of materials from roof to exterior wall.

Our licensed, Professional Engineers inspect and document hard-to-reach areas for our clients and with each drone inspection we produce detailed written reports. The reports contain clear guidance on the current visual condition of building components, make recommendations, and may provide better accuracy on capital planning input. Inspection reports include high-resolution drone images and may include camera photos highlighting problematic areas that are taken during any related interior inspections.

Thermal Imaging

technology and innovations / reduce energy consumption

 

Another innovation originally developed by the military and used by our engineers and technicians is thermal imaging (also known as infrared scanning).

Thermal imaging is a cost-effective diagnostic tool that helps minimize the uncertainties in purchasing or maintaining a commercial building or residence. Thermography technology allows the certified technician to see the unseen and provide hard data to minimize the risk of difficult decisions. The careful interpretation of thermal images allows a forensic examination of a range of existing building components including:

 

  • Building envelope water intrusion
  • Exterior wall air leakage or infiltration
  • Missing or damaged insulation
  • HVAC equipment malfunctions
  • Electrical system component overheating/failure
  • Radiant heating or plumbing leaks
  • Flat roof moisture detection
  • Photovoltaic solar panel defects

Without thermal imaging, even the most experienced building inspection engineer is dependent on visual physical evidence such as water stains, surface warping, or building component failure before identifying a serious hidden problem.

When used in combination with blower door testing, which exaggerates building envelope component leakage, energy losses may be easily documented, and it is easier to discover thermal bridging in a building façade.

Thermal imaging is also used in quality control for buildings under construction or recently finished. It may discover a wide range of construction defects, identify potential sources for indoor air quality problems, mold, corrosion, and other moisture-related issues.

We’re Engineering What’s Next

The specific knowledge we gain with new technology and innovation allows our clients to review visual evidence and make informed decisions when purchasing, leasing, or repairing a building. As new technologies continue to evolve, Criterium Engineers will be at the forefront of studying and adopting the appropriate tools to continually enhance our work product for our clients. Learn about how you can become a Criterium Engineers franchisee.

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